Mexico's Chivas Julio Nava, left, fights for the ball with Brazil's Santos' Marcinho Guerreiro during a Copa Libertadores soccer game in Santos, Brazil,  Tuesday, March 4, 2008. AP Photo logo AP Photo 48 months ago

Mexico's Chivas Julio Nava, left, fights for the ball with Brazil's Santos' Marcinho Guerreiro during a Copa Libertadores soccer game in Santos, Brazil, Tuesday, March 4, 2008.